gdb-mode hangs in OS X

[Nick Roberts <nickrob@snap.net.nz>]

> I'm having an issue under OS X and emacs version 22.0.50.1 where entering any
> command at all in gdb-mode after getting into it with M-x gdb causes the
> buffer to "hang" (it just sits there without producing any output or accepting
> input) --- I can get back to a gdb prompt with C-c C-c, but can't even type
> quit to exit gdb.

> The symptoms are similar to those exhibited by shell mode without (setq
> process-connection-type t).

What version of OS X and GDB are you using?

Set gdb-enable-debug-log to t, do M-x gdb, and please post the resulting value
of gdb-debug-log to emacs-pretest-bug@gnu.org (this is the right mailing list
for Emacs in CVS, currently 22.0.50).

Nick